radio [ˈreɪdiəʊ]

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n.收音机；无线电报，无线电话；vi.用无线电进行通信；vt.用无线电发送

a piece of electronic equipment used for listening to radio broadcasts

The radio says it will be cloudy tomorrow. 无线电收音机报道明天多云。
He learned English through the radio. 他通过收音机学习英语。